Platinum Sintering on H-ZSM-5 Followed by Chemometrics of CO Adsorption and 2D Pressure-Jump IR Spectroscopy of Adsorbed Species

Authors


  • We would like to thank Toyota Motor Europe for financing this research project through the Open Call process. Dr. N. Takahashi, Dr. H. Shinjoh, and Dr. Y. Nagai from Toyota Central R&D Laboratory as well as Prof. S. Matsumoto and M. Miura from Toyota Motor Corporation are warmly thanked for their fruitful discussions. We also acknowledge Dr. Philippe Bazin and Dr. Francis Cruege for help in the development of the PJAS instrumentation and Dr. Chantal Gunther for her skilful assistance in electronics for the data acquisition.

Abstract

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Jump to it! 2D IR pressure-jump spectroscopy of adsorbed CO can be used to assess the accessibility and location of platinum nanoparticles supported on a zeolite and investigate the behavior of Pt atoms after thermal treatment (activation, catalytic reaction, sintering). Different Pt nanoparticle sintering mechanisms were observed in the mesopores and on the external surface of the ZSM-5 support (see picture; HF=high and LF=low frequency).

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